Message type: E = Error
Message class:  FMCA_PERMIT_ESOA - Message Class for Permit Services 
Message number: 021
Message text: Field &1 is required
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
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The SAP error message FMCA_PERMIT_ESOA021 indicates that a required field (denoted by &1) is missing or not filled in during a transaction or process related to the Financial Management (FM) module, specifically in the context of permits or authorizations.
Cause: The error typically arises when: A mandatory field in a form or transaction is left blank. The system requires specific data to proceed, and that data has not been provided. There may be configuration settings that dictate which fields are mandatory based on the context of the transaction.
Solution: To resolve this error, you can take the following steps: Identify the Required Field: Check the error message for the specific field name that is indicated by &1. This will tell you which field is missing. Fill in the Required Field: Navigate to the relevant transaction or form and ensure that the identified field is filled in with the appropriate data. Review Configuration: If you are unsure why the field is
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